helm_release has received update where:

set {
name = "cluster.enabled"
value = "true"
}
or
postrender {
binary_path = "/usr/local/bin/kustomize"
args = ["build", "."]
}
are now invalid blocks and should be set as:
set = [
{
name = "cluster.enabled"
value = "true"
},
{
name = "metrics.enabled"
value = "true"
}
]
and
postrender =[{
binary_path = "/usr/local/bin/kustomize"
args = ["build", "."]
}]